MCQOPTIONS
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| 1. |
The gases which are generally evolved during anaerobic decomposition of sewage are: |
| A. | CO2 + NH3 + SO2 + CH4 |
| B. | CO2 + NH3 + SO2 |
| C. | CO2 + NH3 + H2S |
| D. | CO2 + NH3 + H2S + CH4 |
| Answer» E. | |